A Note on Lacunary Lonely Runners

This paper has been withdrawn by the author.
See the erratum below.

We give a simple argument proving the lonely runner conjecture in the
case where the speed of the runners forms a certain lacunary sequence.
This improves an earlier result by Pandey, and is then used to derive
that for each number of runners the lonely runner conjecture is true
for a set of nonzero measure in a natural probability space.